package interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import pojo.Merchant;

public class LoginInterceptor implements HandlerInterceptor{

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
			throws Exception {
		 String realPath = request.getServletContext().getContextPath();
	        HttpServletRequest req = (HttpServletRequest) request;
	        HttpServletResponse resp = (HttpServletResponse) response;
	        HttpSession session = req.getSession();
	        Merchant user = (Merchant) session.getAttribute("user");
	        if (user == null) {
	            resp.sendRedirect(realPath + "/login.jsp");
	        } else {
	           return true;
	        }
		return false;
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
		// TODO Auto-generated method stub
		
	}

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
			throws Exception {
		// TODO Auto-generated method stub
		
	}

}
